Very funny MMEMatty.....
Have your own answers prepared and for heavens sake don't have a file on your knee to open up and read from verbatim during the interview!! Someone actually did this when asked "what qualities should a good pilot have".
The test papers are not difficult as already mentioned earlier.
This is a good scheme with a job at the end of it and in this day and age should not be sniffed at.
Good luck.